Memory refers to the SDRAM (a kind of RAM) found on the Raspberry Pi.
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How is memory split by CMA?
The post at http://www.raspberrypi.org/phpBB3/viewtopic.php?f=29&t=19334&p=218282&hilit=cma#p217665 mentions that:-
gpu_mem_512=316
cma_lwm=16
cma_hwm=32
In the above ARM has 96M ...
3
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1answer
142 views
Unable to enable unlock 512MB RAM of Model B
I want to set RAM to 384MB. I've tried several things to try and get the RAM above the 184MB shown below by running free -h
total used free shared buffers cached
...
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1answer
266 views
How can I increase the size of the ram disk
In Debian Wheezy If I make a ram disk with
mke2fs -m 0 /dev/ram0
mount /dev/ram0 /mnt/ramdisk
I get a ram disk 3.9M in size. I could really do with 16M, is there a way of making the ram disk ...
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2answers
157 views
How can I change the frequency?
I would like to change the frequency of the RPI, how can I do that, I'm using low level programming. Also how can I get the used memory and free memory?
3
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1answer
1k views
how to know if my Raspberrypi's Ram size is 265MB or 512MB
I've just bought a new raspberry pi as a 512Mb Ram but this website is saying that if my chip contains 2G so it is 265 Ram which is my case my chip number is
k4p2g324ed-agc1
, so if you are ...
8
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1answer
603 views
256 or 512 MB for a webserver
I'm planning to buy a Raspberry Pi, a college of mine has a 256 MB left. But I don't know if 256 MB of memory can for fill the things I want to run.
I want to run an Apache web server (or an other ...
6
votes
2answers
2k views
How do I set the memory split for 512MB model?
I have just received supposingly 512MB model however there are no options for memory split...
Running the latest greatest 2012-09-18-wheezy-raspbian.img
See the video question (30 sec): ...
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1answer
2k views
Memory display on Raspberry Pi running raspbmc
After lying around few months, finally I setup my Pi with raspbmc. But after starting up and when I went to see Systeminfo, it's showing 122MB max memory.
Did I receive model A, which is with a ...
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0answers
815 views
aMule and Deluge on Raspberry Pi
I'm already using my Pi as a media center, now I would also like to transform it into my download center. I've seen that both deluged and amule-daemon packages are available, but the question is, will ...
6
votes
2answers
434 views
Is it a good idea to mount /var in memory?
Re this answer: http://raspberrypi.stackexchange.com/a/867/339
It is suggested that /var be mounted in memory, so to avoid causing your root partition to fill accidentally.
I've got a couple of ...
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votes
2answers
19k views
What is the optimum split of main versus GPU memory?
I read that it's possible to allocate either 128MB, 64MB or 32MB to the Raspberry Pi's video memory.
Given that my primary use case for this machine is educational: I will be running lightweight ...
8
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1answer
2k views
Is it safe to remove the xserver?
I do not use a digital monitor and no TV either with my Raspberry Pi. I would like to remove unnecessary packages, to save disk space and memory consumption. I would like to preserve the possibility ...
19
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1answer
2k views
How does memory-mapped I/O addressing work?
How does memory-mapped I/O addressing work?
I'm trying to understand a sample supplied I2S: Anyone got it running?.
Configuring Clocks:
#define BCM2708_PERI_BASE 0x20000000
#define ...
9
votes
3answers
353 views
Is it possible to control a SRAM module via the GPIO pins?
I would like to attach a SRAM module to the RasPi.
My idea is to store sensitive (encrypted) data on the SD card but keep the key on a SRAM module. It would have its own backup battery (or ...
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4answers
9k views
How to set up swap space?
Raspberry Pi has only 256 MB of RAM, so I would like to use swap space (either on SD card or attached USB storage). How do I set it up?
